Marcelo Alfonso Soto Hernandez

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Related publications (104)

Double-pulse Brillouin distributed optical fiber sensors: analytical model and experimental validation

Luc Thévenaz, Sang Hoon Chin, Marcelo Alfonso Soto Hernandez

An analytical model is presented to describe the behavior of the acoustic wave, probe signal and Brillouin gain in double-pulse Brillouin optical time-domain analysis (DP-BOTDA) sensors. The proposed model is a tool that provides a full physical insight in ...

Spie-Int Soc Optical Engineering2012

Long-range Brillouin optical time-domain analysis sensor employing pulse coding techniques

Luc Thévenaz, Marcelo Alfonso Soto Hernandez

In this paper we describe and implement a long-range Brillouin optical time-domain analysis (BOTDA) sensor, for both temperature and strain measurements, using optical pulse coding techniques. A theoretical analysis of Simplex coding applied to BOTDA syste ...

2010

Simplex-coded BOTDA fiber sensor with 1 m spatial resolution over a 50 km range

Luc Thévenaz, Marcelo Alfonso Soto Hernandez

In this Letter, we propose the use of optical pulse coding techniques for long-range distributed sensors based on Brillouin optical time-domain analysis (BOTDA). Compared to conventional BOTDA sensors, optical coding provides a significant sensing-range en ...

Optical Society of America2010

Distributed strain and temperature sensing over 50 km of SMF with 1 m spatial resolution employing BOTDA and optical pulse coding

Luc Thévenaz, Marcelo Alfonso Soto Hernandez

In this paper we demonstrate a long-range distributed strain and temperature optical fiber sensor using Brillouin optical time-domain analysis in conjunction with optical pulse coding. Compared to standard BOTDA, pulse coding provides higher signal-to-nois ...

SPIE2009

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